Add support for tags

lib/dockerhub.nu

@@ -1,4 +1,4 @@
-export def get_image_digest [image: string] {
+export def get_image_digest [image: string, tag: string] {
   let token = ( get_token $image )
   mut headers = ( [] 
     | append [Accept "application/vnd.docker.distribution.manifest.v2+json"]
@@ -6,7 +6,7 @@ export def get_image_digest [image: string] {
   ) 
   print $headers
 
-  ( http get -H $headers $"https://registry.hub.docker.com/v2/($image)/manifests/latest"
+  ( http get -H $headers $"https://registry.hub.docker.com/v2/($image)/manifests/($tag)"
     | from json
     | get config 
     | get digest

podman-update-check

@@ -29,12 +29,18 @@ export def needs_update [] {
   let data = $in
   let name_parts = ( $data.Name | split row "/" --number 2 ) 
   let registry = ( $name_parts | first )
-  let image = ( $name_parts | last | split row ":" | get 0 )
+  let img_parts = ( $name_parts | last | split row ":" )
+  let image = ( $img_parts | get 0 )
+  let tag = ( $img_parts | get 1 )
   let digest = $data.Id
-  print $"Checking if ($image) has updates on ($registry)"
+  print $"Checking if ($image):($tag) has updates on ($registry)"
 
   if $registry == "docker.io" {
-    ( dockerhub get_image_digest $image ) != $digest
+    try {
+      ( dockerhub get_image_digest $image $tag ) != $digest
+    } catch {
+      false
+    }
   } else {
     print $"Host ($registry) is not supported"
     false